Slides in this set

Slide 1

Slide 2

It is important to use suitable participants in your studyThe population is the group of people from which the sample is drawnSampling techniques are used to choose people who arerepresentative of the population as a whole. When your sample isrepresentative you can generalise the results to the wider populationA sample frame is a list of all those in the population to be studied…read more

Slide 3

Every member of the population has an equal chance of being chosenRANDOM SAMPLING…read more

Slide 4

Number the participants then pick them at a set intervalSYSTEMATIC SAMPLING…read more

Slide 5

Classifying the population into categories and then choosing a sample which consists of participnats from each categorySTRATIFIED SAMPLING…read more

Slide 6

Classifying the population into categories and then asking people who fit into those categories to be participants. When you meet your `quota' of a category, you stop recruiting for that categoryQUOTA SAMPLING…read more